./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7887c90df48e0e32a16c0ae4217eb11a41b3b1af1e02493e847dc25239198c19 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:31:47,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:31:47,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:31:48,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:31:48,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:31:48,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:31:48,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:31:48,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:31:48,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:31:48,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:31:48,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:31:48,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:31:48,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:31:48,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:31:48,082 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:31:48,088 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:31:48,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:31:48,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:31:48,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:31:48,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:31:48,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:31:48,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:31:48,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:31:48,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:31:48,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:31:48,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:31:48,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:31:48,131 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:31:48,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:31:48,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:31:48,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:31:48,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:31:48,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:31:48,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:31:48,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:31:48,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:31:48,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:31:48,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:31:48,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:31:48,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:31:48,148 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:31:48,149 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2021-11-23 15:31:48,198 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:31:48,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:31:48,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:31:48,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:31:48,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:31:48,202 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:31:48,202 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:31:48,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:31:48,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:31:48,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:31:48,212 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:31:48,212 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:31:48,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:31:48,213 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:31:48,213 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:31:48,213 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:31:48,214 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:31:48,214 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:31:48,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:31:48,215 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:31:48,215 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:31:48,215 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:31:48,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:31:48,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7887c90df48e0e32a16c0ae4217eb11a41b3b1af1e02493e847dc25239198c19 [2021-11-23 15:31:48,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:31:48,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:31:48,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:31:48,641 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:31:48,642 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:31:48,643 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i [2021-11-23 15:31:48,738 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/data/489289583/bbdb7cd98b7e4603b72ec98b3a53d270/FLAGb94b8b54c [2021-11-23 15:31:49,380 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:31:49,381 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i [2021-11-23 15:31:49,397 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/data/489289583/bbdb7cd98b7e4603b72ec98b3a53d270/FLAGb94b8b54c [2021-11-23 15:31:49,639 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/data/489289583/bbdb7cd98b7e4603b72ec98b3a53d270 [2021-11-23 15:31:49,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:31:49,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:31:49,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:31:49,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:31:49,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:31:49,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:31:49" (1/1) ... [2021-11-23 15:31:49,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a643e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:49, skipping insertion in model container [2021-11-23 15:31:49,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:31:49" (1/1) ... [2021-11-23 15:31:49,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:31:49,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:31:50,106 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i[24046,24059] [2021-11-23 15:31:50,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:31:50,124 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:31:50,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i[24046,24059] [2021-11-23 15:31:50,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:31:50,263 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:31:50,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:50 WrapperNode [2021-11-23 15:31:50,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:31:50,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:31:50,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:31:50,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:31:50,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:50" (1/1) ... [2021-11-23 15:31:50,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:50" (1/1) ... [2021-11-23 15:31:50,327 INFO L137 Inliner]: procedures = 123, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 117 [2021-11-23 15:31:50,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:31:50,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:31:50,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:31:50,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:31:50,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:50" (1/1) ... [2021-11-23 15:31:50,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:50" (1/1) ... [2021-11-23 15:31:50,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:50" (1/1) ... [2021-11-23 15:31:50,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:50" (1/1) ... [2021-11-23 15:31:50,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:50" (1/1) ... [2021-11-23 15:31:50,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:50" (1/1) ... [2021-11-23 15:31:50,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:50" (1/1) ... [2021-11-23 15:31:50,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:31:50,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:31:50,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:31:50,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:31:50,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:50" (1/1) ... [2021-11-23 15:31:50,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:31:50,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:31:50,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:31:50,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:31:50,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 15:31:50,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 15:31:50,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:31:50,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:31:50,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:31:50,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:31:50,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:31:50,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:31:50,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:31:50,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:31:50,585 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:31:50,587 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:31:50,614 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:31:50,620 INFO L158 Benchmark]: Toolchain (without parser) took 976.55ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 54.2MB in the beginning and 74.7MB in the end (delta: -20.5MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2021-11-23 15:31:50,622 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 90.2MB. Free memory was 62.3MB in the beginning and 62.3MB in the end (delta: 21.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:31:50,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 617.19ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 53.9MB in the beginning and 85.8MB in the end (delta: -31.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:31:50,625 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.77ms. Allocated memory is still 117.4MB. Free memory was 85.8MB in the beginning and 83.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:31:50,626 INFO L158 Benchmark]: Boogie Preprocessor took 46.59ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 82.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:31:50,627 INFO L158 Benchmark]: RCFGBuilder took 242.11ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 74.7MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:31:50,633 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 90.2MB. Free memory was 62.3MB in the beginning and 62.3MB in the end (delta: 21.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 617.19ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 53.9MB in the beginning and 85.8MB in the end (delta: -31.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.77ms. Allocated memory is still 117.4MB. Free memory was 85.8MB in the beginning and 83.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.59ms. Allocated memory is still 117.4MB. Free memory was 83.7MB in the beginning and 82.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 242.11ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 74.7MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:31:50,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7887c90df48e0e32a16c0ae4217eb11a41b3b1af1e02493e847dc25239198c19 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:31:53,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:31:53,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:31:53,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:31:53,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:31:53,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:31:53,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:31:53,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:31:53,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:31:53,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:31:53,661 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:31:53,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:31:53,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:31:53,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:31:53,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:31:53,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:31:53,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:31:53,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:31:53,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:31:53,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:31:53,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:31:53,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:31:53,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:31:53,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:31:53,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:31:53,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:31:53,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:31:53,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:31:53,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:31:53,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:31:53,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:31:53,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:31:53,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:31:53,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:31:53,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:31:53,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:31:53,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:31:53,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:31:53,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:31:53,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:31:53,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:31:53,733 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2021-11-23 15:31:53,808 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:31:53,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:31:53,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:31:53,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:31:53,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:31:53,813 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:31:53,813 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:31:53,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:31:53,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:31:53,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:31:53,815 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:31:53,816 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:31:53,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:31:53,816 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:31:53,817 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:31:53,817 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:31:53,817 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:31:53,818 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:31:53,818 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:31:53,818 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:31:53,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:31:53,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:31:53,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:31:53,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:31:53,820 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:31:53,820 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:31:53,820 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:31:53,821 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:31:53,821 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7887c90df48e0e32a16c0ae4217eb11a41b3b1af1e02493e847dc25239198c19 [2021-11-23 15:31:54,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:31:54,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:31:54,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:31:54,294 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:31:54,296 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:31:54,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i [2021-11-23 15:31:54,385 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/data/b9b05dc05/cc6e6ef67be34cc1b1738ee4d2987725/FLAG626db33bd [2021-11-23 15:31:55,201 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:31:55,202 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i [2021-11-23 15:31:55,236 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/data/b9b05dc05/cc6e6ef67be34cc1b1738ee4d2987725/FLAG626db33bd [2021-11-23 15:31:55,408 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/data/b9b05dc05/cc6e6ef67be34cc1b1738ee4d2987725 [2021-11-23 15:31:55,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:31:55,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:31:55,455 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:31:55,455 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:31:55,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:31:55,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:31:55" (1/1) ... [2021-11-23 15:31:55,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e18bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:55, skipping insertion in model container [2021-11-23 15:31:55,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:31:55" (1/1) ... [2021-11-23 15:31:55,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:31:55,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:31:55,940 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i[24046,24059] [2021-11-23 15:31:55,951 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:31:55,973 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:31:56,064 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/sv-benchmarks/c/list-ext3-properties/dll_nullified-1.i[24046,24059] [2021-11-23 15:31:56,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:31:56,115 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:31:56,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:56 WrapperNode [2021-11-23 15:31:56,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:31:56,117 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:31:56,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:31:56,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:31:56,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:56" (1/1) ... [2021-11-23 15:31:56,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:56" (1/1) ... [2021-11-23 15:31:56,218 INFO L137 Inliner]: procedures = 126, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 117 [2021-11-23 15:31:56,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:31:56,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:31:56,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:31:56,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:31:56,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:56" (1/1) ... [2021-11-23 15:31:56,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:56" (1/1) ... [2021-11-23 15:31:56,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:56" (1/1) ... [2021-11-23 15:31:56,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:56" (1/1) ... [2021-11-23 15:31:56,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:56" (1/1) ... [2021-11-23 15:31:56,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:56" (1/1) ... [2021-11-23 15:31:56,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:56" (1/1) ... [2021-11-23 15:31:56,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:31:56,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:31:56,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:31:56,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:31:56,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:56" (1/1) ... [2021-11-23 15:31:56,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:31:56,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:31:56,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:31:56,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:31:56,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 15:31:56,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 15:31:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:31:56,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 15:31:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 15:31:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:31:56,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 15:31:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:31:56,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:31:56,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:31:56,641 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:31:56,643 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:31:56,702 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:31:56,707 INFO L158 Benchmark]: Toolchain (without parser) took 1266.63ms. Allocated memory is still 77.6MB. Free memory was 62.9MB in the beginning and 58.1MB in the end (delta: 4.8MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2021-11-23 15:31:56,708 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 77.6MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:31:56,709 INFO L158 Benchmark]: CACSL2BoogieTranslator took 661.73ms. Allocated memory is still 77.6MB. Free memory was 62.7MB in the beginning and 45.1MB in the end (delta: 17.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 15:31:56,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.51ms. Allocated memory is still 77.6MB. Free memory was 44.9MB in the beginning and 42.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:31:56,711 INFO L158 Benchmark]: Boogie Preprocessor took 70.31ms. Allocated memory is still 77.6MB. Free memory was 42.8MB in the beginning and 41.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:31:56,712 INFO L158 Benchmark]: RCFGBuilder took 414.07ms. Allocated memory is still 77.6MB. Free memory was 41.1MB in the beginning and 58.4MB in the end (delta: -17.3MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2021-11-23 15:31:56,716 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 77.6MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 661.73ms. Allocated memory is still 77.6MB. Free memory was 62.7MB in the beginning and 45.1MB in the end (delta: 17.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.51ms. Allocated memory is still 77.6MB. Free memory was 44.9MB in the beginning and 42.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.31ms. Allocated memory is still 77.6MB. Free memory was 42.8MB in the beginning and 41.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 414.07ms. Allocated memory is still 77.6MB. Free memory was 41.1MB in the beginning and 58.4MB in the end (delta: -17.3MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:31:56,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b34873d8-a5f4-4b7f-9dc8-528a79623f73/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable